feat(marketplace): command consolidation + 8 new plugins (v8.1.0 → v9.0.0) [BREAKING]

Phase 1b: Rename all ~94 commands across 12 plugins to /<noun> <action>
sub-command pattern. Git-flow consolidated from 8→5 commands (commit
variants absorbed into --push/--merge/--sync flags). Dispatch files,
name: frontmatter, and cross-reference updates for all plugins.

Phase 2: Design documents for 8 new plugins in docs/designs/.

Phase 3: Scaffold 8 new plugins — saas-api-platform, saas-db-migrate,
saas-react-platform, saas-test-pilot, data-seed, ops-release-manager,
ops-deploy-pipeline, debug-mcp. Each with plugin.json, commands, agents,
skills, README, and claude-md-integration. Marketplace grows from 12→20.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/ops-deploy-pipeline/skills/health-checks.md

@@ -0,0 +1,114 @@
+# Health Checks Skill
+
+Pre-deployment system health checks for self-hosted infrastructure.
+
+## Disk Space Checks
+
+```bash
+# Check root filesystem
+df -h / | awk 'NR==2 {print $5}'
+
+# Check Docker data directory
+df -h /var/lib/docker | awk 'NR==2 {print $5}'
+
+# Docker-specific disk usage
+docker system df
+```
+
+| Threshold | Status |
+|-----------|--------|
+| <70% used | OK |
+| 70-85% used | Warning - consider pruning |
+| >85% used | Critical - prune before deploying |
+
+Pruning commands:
+```bash
+docker system prune -f           # Remove stopped containers, unused networks
+docker image prune -a -f         # Remove unused images
+docker volume prune -f           # Remove unused volumes (CAUTION: data loss)
+```
+
+## Memory Checks
+
+```bash
+free -m | awk 'NR==2 {printf "Total: %sMB, Used: %sMB, Available: %sMB\n", $2, $3, $7}'
+```
+
+| Available Memory | Status |
+|-----------------|--------|
+| >512MB | OK |
+| 256-512MB | Warning - may be tight |
+| <256MB | Critical - deployment may OOM |
+
+## Port Availability
+
+```bash
+# Check if a specific port is in use
+ss -tlnp | grep :<PORT>
+
+# List all listening ports
+ss -tlnp
+```
+
+If a port is occupied:
+1. Identify the process: `ss -tlnp | grep :<port>` shows PID
+2. Check if it is the same service being updated (expected)
+3. If it is a different service, flag as Critical conflict
+
+## DNS Resolution
+
+```bash
+# Check if subdomain resolves
+nslookup <subdomain>.<hostname>
+
+# Check /etc/hosts for local resolution
+grep <subdomain> /etc/hosts
+```
+
+For `.hotport` subdomains, DNS is resolved via router hosts file or `/etc/hosts`.
+
+## Docker Daemon Status
+
+```bash
+# Check Docker is running
+docker info > /dev/null 2>&1 && echo "OK" || echo "FAIL"
+
+# Check Docker version
+docker version --format '{{.Server.Version}}'
+
+# Check Docker Compose
+docker compose version
+```
+
+## Image Pull Verification
+
+```bash
+# Check if image exists for target architecture
+docker manifest inspect <image>:<tag> 2>/dev/null
+
+# Check available architectures
+docker manifest inspect <image>:<tag> | grep architecture
+```
+
+For Raspberry Pi, required architecture is `arm64` or `arm/v8`.
+
+## SSL Certificate Checks
+
+```bash
+# Check certificate expiry (for HTTPS services)
+echo | openssl s_client -servername <domain> -connect <domain>:443 2>/dev/null | openssl x509 -noout -dates
+```
+
+## Temperature (Raspberry Pi)
+
+```bash
+vcgencmd measure_temp
+# or
+cat /sys/class/thermal/thermal_zone0/temp  # Divide by 1000 for Celsius
+```
+
+| Temperature | Status |
+|-------------|--------|
+| <60C | OK |
+| 60-70C | Warning - fan should be active |
+| >70C | Critical - may throttle |